I'd like to see a true Imperial combat ship. While there is, of course, the Courier, both the Clipper and Cutter are, essentially, armed traders.
The Feds have the FDS, FAS, FGS and Corvette. Even their names imply that their primary role is military.
What I'd like to see is an Imperial super-heavy fighter. Good maneuverability, decent speed and two class 4 hardpoints. Imagine the Empire's bigger, badder Vulture.
I don't think that that's going to happen. In-game, the Empire is all about soft power projection, aka using diplomatic or economic might to get what they want. That's why the Majestic looks more like a trader than a warship. Because it is.
The Federation is all about hard power projection, aka using military might to get what they want.
You can see the difference in the design of their top end ships. The Cutter is sleek and pretty, designed to impress everyone before it even lands. Then a Imperial diplomat hops out and sells the 700 tons of rare, exotic trade goods in his cargo hold. People remember that this is a common thing, as long as you're on good terms with the Empire.
The Corvette, on the other hand, is sleek in another way. It's deadly. When it shows up at a station, it's a reminder of the military might of the Federal Navy. It's a reminder that if a system decides to go rogue, they're going to see a hundred corvettes up close, with a Farragut coming in behind them to back them up.